Introduction


What is Mainframe?


A mainframe is a large, powerful and highly efficient computer system primarily used by organizations for processing vast amounts of data and running critical applications. Mainframes are known for their high reliability, security, and ability to handle large-scale transactions, making them ideal for industries like banking, insurance, and government, where processing huge volumes of data is essential.

What is Mainframe Application System?


Mainframe Application Systems are a variety of user applications that are hosted on mainframe computers. Mainframe computers and their services are invaluable to governments and corporations because of their ability to process data in large quantities and with data security features.

How does a mainframe look like?


Today's mainframes are much smaller than the original "Big Iron machines" that were decades ago. IBM's mainframes are now almost the size of a fridge and latest mainframe has shown in the picture displayed right.

Mainframe

How Mainframes different from Supercomputer?


The main difference between mainframes and super computers is their usage -

Mainframe ComputerSuper Computer
These are used to store, process large amount a data from maximum number of users. These are used for large and complex mathematical computations.
Mainframes generally operates at millions of data processing operations. Super computers operate quadrillions of floating-point operations per second.

Advantages -


  • Processing speed is too fast
  • Highly reliabile
  • Highly availabile and durable
  • Error free and Serviceability
  • High-end scalability
  • Security
  • Long-lasting/stable performance
  • Continuing compatibility
  • Huge memory storage
  • Virtualized system
  • Runs multiple OS
  • Real-time monitoring and control

Disadvantages -


  • Physical size
  • Costs high
  • Hardware/software is expensive
  • A lot of space required
  • High technical staff
  • Command drove interface
  • Hardware crash makes whole system down
  • Maintenance

Who uses Mainframes?


Industries that commonly use IBM mainframes include:

  • Banking and Financial Services
  • Insurance
  • Healthcare
  • Retail
  • Telecommunications
  • Manufacturing
  • Government
  • And so on